High-harmonic generation by electric polarization, spin current, and magnetization

@article{Ikeda2019HighharmonicGB,
  title={High-harmonic generation by electric polarization, spin current, and magnetization},
  author={Tatsuhiko N. Ikeda and Masahiro Sato},
  journal={Physical Review B},
  year={2019}
}
High-harmonic generation (HHG), a typical nonlinear optical effect, has been actively studied in electron systems such as semiconductors and superconductors. As a natural extension, we theoretically study HHG from electric polarization, spin current, and magnetization in magnetic insulators under terahertz or gigahertz electromagnetic waves. We use simple one-dimensional spin-chain models with or without multiferroic coupling between spins and the electric polarization, and study the dynamics… 

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